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Finding the Fourth Proportional to 157,107.48, 235,661.22 and 129,347.16

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Solution

The fourth proportional to 157,107.48, 235,661.22 and 129,347.16 is: 194,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,107.48 : 235,661.22 = 129,347.16 : x
  2. Step 2: Convert to fraction form
    157,107.48/235,661.22 = 129,347.16/x
  3. Step 3: Cross multiply
    157,107.48x = 235,661.22 × 129,347.16
  4. Step 4: Simplify right side
    157,107.48x = 30,482,109,529.14
  5. Step 5: Solve for x
    x = 30,482,109,529.14/157,107.48
  6. Step 6: Final answer
    x = 194,020.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.